masterkale / fork-ts-checker-webpack-plugin-bug-repro-561

fork-ts-checker-webpack-plugin (Issue #561)

Issue

fork-ts-checker-webpack-plugin is not referencing module declarations as specified in tsconfig.json > compilerOptions.typeRoots.

Reproduction steps:

1. npm install
2. npm run build:tsc
3. Observe no build error
4. npm run build:webpack
5. Observe build error:

Hash: 18f26cef5e5db950fb3c
Version: webpack 4.41.2
Time: 1962ms
Built at: 03/11/2021 9:49:16 AM
 2 assets
Entrypoint index = index.js
[1] ./src/ts/Acme.png 61 bytes {0} [built]
[2] ./src/ts/index.tsx 189 bytes {0} [built]
    + 3 hidden modules

ERROR in src/ts/index.tsx:3:22
TS2307: Cannot find module './Acme.png' or its corresponding type declarations.
    1 | import React from 'react';
    2 |
  > 3 | import AcmeLogo from './Acme.png';
      |                      ^^^^^^^^^^^^
    4 |
    5 | const IndexComponent: React.FC = () => {
    6 |   return <img src={AcmeLogo}/>;
npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! [email protected] build: `webpack --color --env production`
npm ERR! Exit status 2
npm ERR!
npm ERR! Failed at the [email protected] build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

Workaround

1. Update webpack.config.js to add the following to the configOverwrite.include array passed to the ForkTsCheckerWebpackPlugin plugin in webpack.config.js:

'./src/types/**/*.ts'

2. Re-run npm run build:webpack
3. Observe no build error